White Rodgers NBE 15ZAA-09 Thermostatic Expansion Valve NXT SERIES THERMOSTATIC EXPANSION VALVE WITH ADJUSTABLE SUPERHEAT, NO CHECK, EXTERNALLY EQUALIZED, 15 TON CAPACITY, REFRIGERANT CODE Z (R-410A), CHARGE CODE AA (WIDE RANGE), CAP. TUBE 60", 7/8" ODF X 1-1/8" ODF, STRAIGHT THRU BODY